Alert archive / Texas / Mesoscale Discussions in 2007
Mesoscale Discussion 1069
The Storm Prediction Center issued this mesoscale discussion at Jun 8, 2007, 6:36 PM CDT for 25 counties in Texas. It was in force for 114 min.
The area
The outline as issued.
The facts
- Issued
- Jun 8, 2007, 6:36 PM CDT (23:36 UTC)
- Expired
- Jun 8, 2007, 8:30 PM CDT
- In force
- 114 min
- Issued by
- the Storm Prediction Center
All 25 counties
Anderson County, TX, Bell County, TX, Burnet County, TX, Cherokee County, TX, Coryell County, TX, Falls County, TX, Freestone County, TX, Gregg County, TX, Henderson County, TX, Hill County, TX, Houston County, TX, Lampasas County, TX, Leon County, TX, Limestone County, TX, Llano County, TX, Madison County, TX, McLennan County, TX, Milam County, TX, Navarro County, TX, Robertson County, TX, Rusk County, TX, Smith County, TX, Van Zandt County, TX, Williamson County, TX, Wood County, TX
The radar
The Dallas/Ft Worth radar (KFWS), 113 km from the middle of the area, began a volume at 23:37 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
The nearest sounding before it
Fort Worth, TX (KFWD), launched 12:00Z, 11.6 hours before the alert went out and 137 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 2958 J/kg
- Mixed-layer CIN
- -88 J/kg
- Mixed-layer LCL
- 758 m above ground
- 0-6 km bulk shear
- 26 kt
- 0-1 km storm-relative helicity
- 115 m²/s²
- 0-3 km storm-relative helicity
- 73 m²/s²
- Significant tornado parameter
- 0.6
- Supercell composite
- 3.1
The text
As transmitted, in the capitals the NWS used until 2016.
000 ACUS11 KWNS 082336 SWOMCD SPC MCD 082336 TXZ000-090130- MESOSCALE DISCUSSION 1069 NWS STORM PREDICTION CENTER NORMAN OK 0636 PM CDT FRI JUN 08 2007 AREAS AFFECTED...EAST CENTRAL TX CONCERNING...SEVERE POTENTIAL...WATCH POSSIBLE VALID 082336Z - 090130Z STORMS MAY INCREASE IN AREAL COVERAGE/INTENSITY ACROSS EAST CENTRAL TX THROUGH EARLY EVENING. WILL MONITOR FOR A POSSIBLE WATCH. LATEST VOLUMETRIC RADAR IMAGERY FEATURES STRONG/SEVERE STORMS FOCUSED ALONG FRONTAL BOUNDARY IN UPSHUR/GREGG/SMITH COUNTIES IN NORTHEAST TX. ALTHOUGH LIMITED BACKGROUND FORCING FOR ASCENT AND A RESIDUAL LAYER OF WARM AIR ALOFT HAS THUS FAR CURBED THE DEVELOPMENT OF DEEP CONVECTION INTO CENTRAL TX...LATEST VISIBLE SATELLITE TRENDS FEATURES EXPANSION OF MODERATE/TOWERING CU ACROSS NORTHEAST/EAST CENTRAL TX...BOTH ALONG THE FRONTAL BOUNDARY AND THE ADJACENT UNSTABLE WARM SECTOR. SOUTHWEST PROPAGATION AND CONGLOMERATION OF CONVECTIVE OUTFLOWS ACROSS NORTHEAST/EAST CENTRAL TX COULD LEAD TO ADDITIONAL DEVELOPMENT SOUTHWESTWARD WITH TIME...WITH THE POTENTIAL FOR STRONG/SEVERE THUNDERSTORMS TO ZIPPER TOWARD THE I-35 CORRIDOR...INCLUDING THE WACO/FORT HOOD/AUSTIN VICINITIES. ..GUYER.. 06/08/2007 ...PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT... ATTN...WFO...SHV...HGX...FWD...EWX...SJT... 32519623 32859543 32549453 31759460 30569648 30339870 30769898 31379822 32019713
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 7, 7:08 PM CDT | Mesoscale Discussion | SPC | Archer, Clay, Cooke, Denton, Jack, Montague and 2 more | 2 hr |
| Jun 8, 8:32 AM CDT | Mesoscale Discussion | SPC | Bowie, Camp, Cass, Delta, Franklin, Hopkins and 5 more | 58 min |
| Jun 8, 2:12 PM CDT | Mesoscale Discussion | SPC | Anderson, Angelina, Bastrop, Bell, Blanco, Brazos and 37 more | 3 hr |
| Jun 8, 5:24 PM CDT | Mesoscale Discussion | SPC | Brewster, Jeff Davis, Presidio | 2 hr |
Nearby
Mesoscale Discussions in Texas, 2007Every mesoscale discussion in 2007
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.